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10 papers · 2 filters
Improved Unitarized Heavy Baryon Chiral Perturbation Theory for pion-nucleon Scattering to fourth order
A. Gomez Nicola, J. Nieves, J. R. Pelaez +1
We extend our previous analysis of the unitarized pion-nucleon scattering amplitude including up to fourth order terms in Heavy Baryon Chiral Perturbation Theory. We pay special at…
Charmed and Bottom Baryons: a Variational Approach based on Heavy Quark Symmetry
C. Albertus, J. E. Amaro, E. Hernandez +1
The use of Heavy Quark Symmetry to study bottom and charmed baryons leads to important simplifications of the non-relativistic three body problem, which turns out to be easily solv…
Renormalization of Singlet NN-Scattering with One Pion Exchange and Boundary Conditions
M. Pavon Valderrama, E. Ruiz Arriola
We present a simple and physically compelling boundary condition regularization scheme in the framework of effective field theory as applied to nucleon-nucleon interaction. It is f…
Quark mass dependence of s-wave baryon resonances
C. Garcia-Recio, M. F. M. Lutz, J. Nieves
We study the quark mass dependence of s-wave baryon resonances. Parameter free results are obtained in terms of the leading order chiral Lagrangian. In the 'heavy…
Meson Exchange Currents in (e,e'p) recoil polarization observables
F. Kazemi Tabatabaei, J. E. Amaro, J. A. Caballero
A study of the effects of meson-exchange currents and isobar configurations in reactions is presented. We use a distorted wave impulse approximation (DWIA)…
Spin-orbit induced backflow in neutron matter with auxiliary field diffusion Monte Carlo
L. Brualla, S. Fantoni, A. Sarsa +2
The energy per particle of zero-temperature neutron matter is investigated, with particular emphasis on the role of the interaction. An analysis of the importan…